Mounting base for attaching a luminaire to the top of a tubular post



FIG. 1 is a bottom, front, right side perspective view of a mounting base for attaching a luminaire to the top of a tubular post showing my new design;

FIG. 2 is a top plan view thereof, the angled top surface engaging the globe of the luminaire;

FIG. 3 is a bottom plan view thereof, the cylindrical tube engaging the top end of the post;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a left side elevational view thereof. 

The ornamental design for a mounting base for attaching a luminaire to the top of a tubular post, as shown and described. 